Device for feeding tinning-machines.



PATENTED APR. '7, 1908,

P.- BOSTON. DEVICE FOR FEEDING TINNING MACHINES.

APPLICATION FILED APR. 22 1907.

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fiwerzior PATENTED APR. 7; 190.8

. v P. BOSTON. "DEVIGE'FOR FEEDING TINNING MACHINES.

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APPLICATION FILED APBJR, 1907.

PAUL BOSTON, OF NEW CASTLE, PENNSYLVANIA.

DEVICE FOR FEEDING TINNING-MAOHINES.

Specification of Letters Patent.

Application filed April 22, 1907.

Patented April 7, 1908 Serial No. 369,651.

To all whom it may concern;

Be it known that I, PAUL BOSTON, a citizen of the United States, residing at New Castle, in the county of Lawrence and State of Pennsylvania, have invented certain new and useful Improvements in Devices for Feedin Tinning-Machines; and I do declare the f0 owing to be a full, clear, and exact descri tion of the invention, such as will enab e others skilled in the art to which it appertains to make and use the same, reference being had to the accom anying drawings, and to the letters and gures of reference marked thereon, which form a part of this specification.

My invention relates to a device for feedplates into tinning machines by means of ro ls operated by a chain-belt on sprocket wheels by which the plates are carrled into the tinning vat. I attain this object by the mechanism illustrated in the accompanying drawings, in which I Fi ure 1 is a perspective exterior view of the efice. Fig. 2 is a vertical cross-section view on the dotted line, XX of Fig. 4. Fig. 3 is a vertical cross-section view on the dotted line Y-Y, of Fig. 4. Fig. 4 is a top view. Fig 5 is a vertical perspective inside view of the cases in which -the rolls are inclosed and operate. Fig. 6 is a vertical view of the division wall between the device and the tinning vat.. Figs. 7 and 8 are enlarged pers ective views of the dove-tailed slots in Whic the axles of the rolls revolve.

Similar letters refer to similar parts throughout the several views.

The box A is the outer metal frameof the device, solidly connected with the tinning vat B; the whole being cast in one piece. The dry-box C is formed by-the wall of A, and the triangular partition Wall O and the sides of the roll-cases F and G. This drybox 0 is constructed so as to exclude from the gearing allfluxing fluid, smelted tin, oil, or other fiuid substances. The sprocketwheels D D are attached to the axles ofthe rolls I and K, as shown in Fig. 2, and on which the chain-belt E operates. The rolls I and K are situated transversely inthe roll cases F and G, the upper rolls I resting down upon K K. These roll-cases are entirely separate; the case F restin on the top of G, and braced in lace by 516 cross-bar H. The bottom of tl ie case G is solid while that of case F, (N) is perforated, the two cases be ing intended to serve as a flux box. The interior of these roll-cases are provided with aprons J J, extending transversely between each air of rolls, and supported in place by .the. b ocks Z Z on the interior sides of the the roll-cases are rooved, n n of Fi 5, andthe upper edgeo C and the rol -case G have ton ues, e 6 so that the edges respe'c tively, w en placed contiguous fit closely. These roll-cases are further-secured by the clamps h 71,. These clamps are only necessary on the sides of the roll-cases adjacent to the dry-box C, the opposite sides belng protected by the partition C The partition (1?, and the framework A A, form the smelting box L, from'which the smelted tin can freely flow into the tinning vat B, through the o enings r r. The front, or up er ends of the ro l-cases are furnished with ceding tables M M, the sides of which rest in the rooves m m. The axles of the rolls I I, and K in the vertical dovetailed grooves P P.

Only those axles extend through: the sidesv of the roll cases that have sprocket wheels. These sprocket wheeled axles are secured in the grooves P P by wedges w w dropped into the grooves and held in place by a screw passing through the wedge and im inging on the inner side of the groove. The ower ends of these wedges are concave so as to fit over the axle. The two center axles of the roll in the roll-caseG, have underneath them, inserted in the grooves P P, a spiral spring and block z, to hold the rolls in contact with their corresponding upper rolls.

Extending the length of theopenings O O, are guides R B. These guides'are convex, on their under sides, and are intended to direct the plates as they come from the rolls throu h the openings 0 0, into the tinning rolls in t e tinnlng vat.

rest, and revolve I The power to operate the device is supplied by means of a belt from a power shaft passing upon the wheel A".

In setting the device, the box A is inclosed to the upper edge or rim by the walls of the heating furnace underneath, the bottom of the tin vat, smelting ot and fiuxing pot being exposed to the flame in the furnace. In operation, the operator places the plates to be tinned on the tables M M, alternately, using the inner sides of the roll-cases as a base for directing the plates squarely into the rolls, then shovin them forward on the tables until gripped y the first, or upper pair of rolls in each of the roll-cases and thence throu h each succeeding pair, and the openings 0 into the tinning vat and the tinning rolls.

I make no claim specifically for the tin vat B and the tinning rolls therein; the openings 0 0 into the tinning vat; the smelting pot L, nor for the sprocket wheels D D and chain E, used for operating the device; but

. What I do claim, as distinctively new, is: The cast metal box A in combination with the roll-cases F and G centrally located therein, and the dry box (3; the said roll-case F being immediately over, and attached to roll-case G by the clamps h h, the tongue and groove n and 0, and braced by the cross-bar projection H on the exterior wall of the tinning vat B; the bottom of F being perforated and that of G solid throughout, forming a suitable fluxing box; each of said roll-cases so situated having a feeding table M M at the upper and outer ends thereof adjusted and supported in rooves in the opposite sides thereof'to facilitate the feeding of plates to betinned, and each being provided with four sets of rolls laced transversely within them, the axles of said rolls resting in the dove tailed vertical grooves P P, in the side walls of said cases, said axles in roll-case F and the front and rear axles in rollcase G bein held in said groovesby wedges 'w 'w, the ax es of the two center rolls K K in the roll-case G supported from beneath by the blocks and spiral springs 2 z inserted in the base of said grooves; said rolls being operated, by means of sprocket wheels on the ends of the axles of rolls I I of roll-case F and of the two end rolls of roll-case G K K. which are ropelled by the chain E located in the dry ox C, and prote'cted thereby from smelted tin, fluxing fluid, or other foreign obstructing substances; the space between each set of rolls in said rollcases being narrowed or contracted by the aprons 9' 7' extending. from side to side of the cases and supported in place by the blocks Z Z on the inner sides thereof, the intervening spaces between said aprons forming guides for directing the plates from one set of rolls to the next, and preventing their curling in the roll-cases the said several parts, in combination, forming a device for the ra id and continuous feeding of plate, by mec anical means into machines for tinning the same as substantially set forth.

In testimony whereof, I affix my signature, in presence of two witnesses.

PAUL BOSTON.

' Witnesses:

TnoMAs W. FELLs, HoMER O. DRAKE. 

